Isaac gates



(EN) Model.

I; GATES.

RoN TOWER.

Paten' 13e/d inept. 24, 3.88

mme@

PATENT irren.

IRON TOWER SPECIFICATION forming part of Letters Patent No. 411,432, dated September 24, 1889.

Y Applicatie mea ruiy 24,1888, seria No. 280,868., (Nomade.)

To all zult/Ont it may concern.:

Be it known that I, ISAAC GATES, ay citizen of the United States, residing at Marion, in the county of Linn and State of Iowa, have invented certain :new and useful Improvements in Iron Towers; and Ido hereby declare the following to be a full, clear, and exact description of the invention, such as will ena-ble others skilled in theart to which it appertains to make Vand use the same.

This invention relates to that class of towers in which the principal parts of the structure are composed of gas-pipe; and the object of my invention is to provide novel means for the connecting of the parts of the tower, for trussing and anchoring t-he same, and otherwise simplifying and improvingr its construction.

.lhe invention consists in the combination, construction, and arrangement of part-s, as hereinafter fully set forth and claimed.

In the accompanying drawings, forming a part of this specification, Figure 1 is an elevation Ol the tower in perspective; Fig. El, a

vertical section of the upper partof the tower in a line drawn diagonally across the same; Fig. 3, an enlarged view of thc corner-irons, tension device, and connected parts in perspective; Fig. 4, a fragmentary plan view ot t-he step-plate; Fig. 5, a plan view of the guide for the shiftin'rrod; Fig. G, a fragmentary viewin perspective of the; guide for the main connectingrod of a windmill, and Fig. 7 a longitudinal section of the anchor ior the tower.

Similar letters of reference indicate corresponding parts.

rlhe tower, as a whole, is more especially designed for windmills;

plicable to towers for electric lights, signals, and the like.

Referring to the drawings, A A are cornerposts of iron tubing, as gas-pipe. 'lhesemay beeach a sinele piece or composed of any number of sections connected by the ordinary coupling j. lfour of these corner-posts are commonly used5but a less or greater nuliyiber .0mg made in the angle of the corner-iron herinalter to be described. At their upper'ends l corner-iron.

but the essential tea-` tures of the main structure are equally apthese corner-posts screw into the corners of a top plate (l, (or clamp thereto in the same manner as to the step-plate,) which in the case of a windmill-tower is provided with a suitable central hole to serve as a bearing for the vertical pivot of the windmill. (Not shown.) At a proper distance below this vtop plate, depending upon the length of the pivot above referredto, is a step-plate I), attached at its corners to the corner-posts by a clamp D', similar to the half ot' a common journalbox, and adapted to be drawn tightly against the pipe A by means of bolts l1. In the center of this step-plate is a socket D for the lower end of the pivot, a` smaller ecntral hole D" being provided for the main connecting-rod of the windmill. In one side of the step-plate is a hole c to receive the shifting rod or cord of 'the windmill. The step-plate is preferably made of about the same size as the top plate, so that the corner-posts between those Vplates are practically parallel. Below the step-plate the ornerd posts should of course spread outwardly to the bottom, and this is done by bonding the-m, preferably before erection. At suitable inten vals below the step the corner-posts are braced transversely bya series of struts l Il B engaging with corner-irons I I I. The struts are sim ple sections of pipe, and are con nected with the corner-irons by slipping their ends on studs I formed on the flaring extremities ot' the The corner-i ron is composed of two parts I and I,respectively, which are also in the nature of a journal-box, the halves thereot` being provided with concave recesses for the sides of the corncr-postA. 'The parts' are adapted to clamp the corner-post tightly as drawn together by bolts a a..

A seriesof diagonal rods '1 K serve to bind and truss the whole frame firmly together. These are scoured by the bolts a a to the corner-iron, being provided with eyes at the ends for that purpose. In practice I also secure the truss-rods together at their intersection by a simple coil ot stout wi rc or the like7 which has the effect of considerably increasing the strength of the truss.

The vtension device consist-s of' a clamp composed of the part il, with a perforated lng therein to receive a rod or bolt llfheonneetml by its 'eyeto the corner-iron, and the part J", with suitable eonneeting-holts a. o', end the tighteninb-bolt M,lwith its nut 72, above referred to.

An improved anchorage for the tower illustrated bythe cutting ziwnyof part. of the ground inFigfl. A. ie erpipe or rod eoupling to the lower end ot the eornerpost A. The lower end of this, rofl is secured, ee by .fm inclosed nut g, to aiicliorhloelrs G, which may be of wood or metal, anti are fastened together by bolts ff, th'as holding the nut g in place. Near the upper end of the tower a. platform E is shown secured to the corner-posts by clips d (Z. Braces L L, connecting with the corners of the platform :intl the corner-irons in the name manner ns the truss-rods, hold the platform rigidly in position. l" in a transverse bar, preferably of iron, secured by clips d' df to opposite struts, and provided with :i stirrnp F', secured to its side by bolts ff a. Slots e e allow n limited movement of the stirrup for adjustment. The device serves :is :i guide for the main connecting-rod of the windlnill--asgfor exmnple, the pump-roll. l nder one side of the step-plate D, with its hole e coinciding with the hole r: in said step-plate,

tional @hide or'the"shiftiiglrod of the windmill.vr lt is attached to the corner-post in the isalnmpfiron H Il', which acts ne nn acidisame manner ns the corner-irons liv-ineens of4 a, holt a". v

In the erection of n tower the parte are pnt together. in the relative position .shown in Fig. 1.

The ppc-reel: of corner-irons and the clamp-iron .i J nrc Secured tigl'xt-lyto the eorner-posts. Then by screwing np the nuts h under the clamp-iron the whole frnine of the tower-ie drawn together, the diagonal truss-rods tending to drew the corners in upon the fstruls,which thus ref; nire no other fastening,

Theiseparnhle corner-irons and clamps etlmit of the corner-posts 'being mede of: sec tions 'and pnt up in any way thatv may he most convenien t. So also, the, 'truss-rods be ing in seetions,zznyene of themV may he re-v moved eml replaced nt will.

In praetice the rocl or pipe A', oneof which connects with eaeh of the oornonpoets, is grilvnnizetl for better preservation 'freni rust when buried in the ground.

ermee Having' thns described my in ventionfwhat claim as new, and (lenire to seeure hyLettern Patent, ifs- J l. ln an iron tower, the combination of tubular corner posts, two-part corner irons adept-ed to he clmnped tightly upon sami eor nereposts and having' holte therefor, and prof,

jecting studs to receive the entle of tubular en' ot' an iron tower, of the pipe or rml JU, lmv- 7o ing' n. coupling; j, and the anc-hor hei/ingr the inclosed nut g engaging; with the end oi the corneipost, snhstantinlly ne anflior the purpose set forth.

3. In an iron tower, the co'nihimilieni of the 'gi 5 corner-posts A and the step-plate l5, hei-'ing the corner clamp-irons D il', the socket; ll, 1 and the hole l, substantially :is find for the purpose set forth.

l. ln an iron tower, the coinhinni-ion oi.'

the So een trol hole therein adapted to form the hearinsgr for the pivot.- o n. windmill, miclthe Siepgjete l scenreti to Selci eornerirons hy olnmpdronfs D D, nml hnring o, cenirel'fg ing'a hole c' for the ehiltinigerozl of fr nintl mill, substantially is set forth.

6. ln an iron tower of the einen specified,

the eemhination, with the nlrnts El l, of the struts hy '95 trzn'isrerse4 hor F, seonretl 'to enhl clips tl d", nml provided with thcntljuntsihle strrnp-iron F, .enhSt-nntinlly es .finti for the purpose set forth. i

In teniimony whereof l affix my nignzrinre inpreenee of two .ritigieesen;

' lSA MIB GATES. Witnesses: l

Z. IV. Enennenr, H. W. @Arne 

